5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb

General

Target

5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Size

29KB
MD5

3d3c5b02f8c6d22cdc52c74b810011a8
SHA1

3e1f9f94f7f4fff3c772e62db75357104a3d5943
SHA256

5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb
SHA512

de4a65b7349b27f8557588082e85571096f3cf63436af18fa635a37ab055f40656087156f8b674d6d6c37dd48d810297d12581a6241d1dc11a61fa9dc416e305
SSDEEP

768:PVEHJqjHyGvwFylDpulVSQJrE/2QmlCYZUT3v1VwOxfrfk7:PH2nylslwHCCLBPr8

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2636	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
File created	C:\Windows\SysWOW64\¢«.exe	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
File created	C:\Windows\system\rundll32.exe	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716761581"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716761581"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2636	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
2636	rundll32.exe
2636	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 2636	1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe	28
PID 1200 wrote to memory of 2636	1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe	28
PID 1200 wrote to memory of 2636	1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe	28
PID 1200 wrote to memory of 2636	1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe	28
PID 1200 wrote to memory of 2636	1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe	28
PID 1200 wrote to memory of 2636	1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe	28
PID 1200 wrote to memory of 2636	1200	5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe	28

C:\Users\Admin\AppData\Local\Temp\5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe
"C:\Users\Admin\AppData\Local\Temp\5dcb456a45e9e9a9d4503269849f10b76fbfd26756c55d6983eae801f38eefbb.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2636

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
28KB

MD5
e8ae21ef17b87689d37628affbfbe6d1

SHA1
a6f8743dacfb2a75707f367ffade8c847d0607f4

SHA256
44e045f4ab4fa8196b270f7a4eda33fce6d5fe4aaeae8e9c16689e453aaa5709

SHA512
9276b974e480ac241296515193036bf3508ed600e69f654b20595a2f7747e034c2cb028ca9721e6bf233f9b11c49a291ce78ed8f420ff812ea8ff24035aee1a0

Download Submit
\Windows\system\rundll32.exe

Filesize
27KB

MD5
095324f8001b31e01c16d6a21acb361f

SHA1
2a6ce394e20fb5c9b62250a0ae107d6851d8cfdd

SHA256
8a5a7b8f37402926133559c56eb0ffb5f98380ad0a7457697ab158c80fea985b

SHA512
381f9c773b09d0ada0896e51999ccf9daaf93a0359745b4211c741fbb933def8db81e94283c4bb55ebd25fe3be196744cf896dbc0b2566b40c68e9f10500a448

Download Submit
memory/1200-21-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1200-12-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download
memory/1200-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1200-19-0x0000000000380000-0x0000000000395000-memory.dmp

Filesize
84KB

Download
memory/1200-22-0x0000000000380000-0x0000000000382000-memory.dmp

Filesize
8KB

Download
memory/2636-26-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-30-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-25-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-20-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-27-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-28-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-29-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-23-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-31-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-32-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-33-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-34-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-35-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2636-36-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads